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2 years ago

4+3.2)×(9−2)+2.5 No links hellp meeee!

Mathematics

1 answer:

iogann1982 [59]2 years ago

5 0

Answer:

52.9

Step-by-step explanation:

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Which answer choice shows the decimal 23.476 written in expanded form?

Sergio039 [100]

Answer: 23.476 = 20+3+0.4+0.07+0.006

Step-by-step explanation:

I think you were supposed to write down the choices but I will guess the answer is this one:

23.476 = 20+3+0.4+0.07+0.006

Hope I helped!

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2 years ago

Please help asap!!!!

Lyrx [107]

Answer:

Step-by-step explanation:

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2 years ago

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Joe is building a post for his mailbox. To find the correct dimensions, he needs to expand this expression: (x-3) (x-9) (x-4) Se

kolbaska11 [484]

Answer:

$(x-3)(x-9)(x-4)=x^3-16x^2+75x-108$

Step-by-step explanation:

Given:

The expression to expand is given as:

$(x-3)(x-9)(x-4)$

Let us expand the first two binomials of the given expression using FOIL method.

The FOIL method states that:

$(a + b)(c + d) = ac + ad + bc + bd$

$(x-3)(x-9)=(x\times x)+(x\times -9)+(-3\times x)+(-3\times -9)\\\\(x-3)(x-9)=x^2-9x-3x+27=x^2-12x+27$

Now, let us multiply the result with the remaining binomial. Multiplying each term of the trinomial with each term of the binomial, we get:

$(x^2-12x+27)(x-4)\\\\= (x^2\times x)+ (x^2\times -4)+(-12x\times x)+(-12x\times -4)+(27\times x)+(27\times -4)\\\\=x^3-4x^2-12x^2+48x+27x-108\\\\=x^3-16x^2+75x-108...........(\because-12x^2-4x^2=-16x^2,48x+27x=75x)$

Therefore, the equivalent expression after expanding is given as:

$(x-3)(x-9)(x-4)=x^3-16x^2+75x-108$

3 0

2 years ago

I need help finding the area

BabaBlast [244]

Answer:

Step-by-step explanation:

A=a+b/2*hA=12

A=12*12/2

Hoped this helped! :)

Plz mark Brainliest!

Have a nice day!

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2 years ago

Help please im not sure

Lisa [10]

Answer:

the first and last

Step-by-step explanation:

its correct

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2 years ago

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